best behavior

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He was on his best behavior since it was in dad’s London office, and advisers entered the room throughout the day.

From The Wall Street Journal • Feb. 24, 2026

Their players, however, know with the school’s two big wigs also wearing coaching hats, they always need to be on their best behavior.

From Los Angeles Times • Nov. 29, 2025

If you can do the cauliflower, you better be on your best behavior.’

From Slate • Oct. 31, 2024

“Critiquing the institution, if done at a high crescendo, hopefully gets the court to be on their best behavior in the future,” Mr. Green said.

From New York Times • Jul. 13, 2023

"And I want you to be on your best behavior, Buster," said his father, who happened to wander into the kitchen at that moment.

From "Jeremy Thatcher, Dragon Hatcher" by Bruce Coville